<div class="mdc-snackbar__surface" #surface>
  <!--
    This outer label wrapper will have the class `mdc-snackbar__label` applied if
    the attached template/component does not contain it.
  -->
  <div class="mat-mdc-snack-bar-label" #label>
    <ng-template cdkPortalOutlet></ng-template>
  </div>
</div>
